Steam-hose.



C. A. SWANSON 31: A. B. BROOKE.

STEAM HOSE.

APPLICATION FILED P21316, 1912.

Patented Feb. 11, 1913.

'W'tnesses .fnl/@n fors ('czrles HJM/62716077,

be driven by said fluid.

`STATES' PATEN CHARLES AaSWANSON AND ALBERT BUSHONGJBROOKE, OF HANCOCK, MARYLAND.

STEAM-HOSE.

Specification of Letters Patent. Application led February 2o, 1912. Serial No. 679,879.

Patented Feb. 11,1913.

To all whom# may concern.'

Be it known that we, CHARLES A. SWAN- soN and ALBERT BUsHoNG BROOKE, citizens of the United States, residing at Hancock, in the county of Washington and State of Maryland, have invented certain new and useful 'Improvements in Steam-Hose, of which the following is a specification.

This invention, relates to hose and particularly to hose especially designed and intended for conveying, motive fluid under pressure to movable tools or implements to The principal object of this invent-ion is to furnish a hose especially constructed for conveying steam to drills or like tools.- A hose for this purpose must be able to hold steam, adapted to' bend without kinking, and sufficiently resistant to mashing to avoid the necessity of providing special housingtherefor between the source of steam and the tool driven thereby. y

To this end the invention consists in a hose lined with a tube or pipe of moderately flexible metal such as lead or annealed copper N y tween the spiral and the lead pipe as indimaterial, and this in turn surrounded by a Y shield suiiiciently iiexible to permit the required bending of the hose.

Other features of the invention will appear in the following detailed description and appended claims. l

In the. accompanying drawings which form va part of this specification, Figure 1 represents the improved hose in partially sectionized axial section; and 'Fig'. 2 represents the hose in transverse section with an additional part inserted.

' The metallic lining of the hose is represented at 5, and may be an ordinary lead pipe or one of annealed copper. The essen'- tial features of this element are imperviousness and fiexibility. The terms pipe and tube as herein used signify an inarticulated structure-not pne made -up of sections or. successive convolutions. I

To permit bending to a reasonable and safe extent the tube 5 is surrounded by a compressible layer such as asbestos fabric indicated at 6, and to shield this and assist in limiting the extent of bending to a safe degree, the asbestos layer is preferably surrounded by several closely wound layers of Ain kinking the ylead pipe.

hose. It is also canvas 7. The layers of canvas may or may no-t be cemented together. A greater degree of flexibility is provided when they are not cemented. Unless rubber is used in cementing thelayers of lcanvas together there is none of it in the hose, to make the hose impervious to the motive fluid. The metallic pose. Any suitable shield may be applied about the canvas to take `the -wear on the hose. A coarse woven fabric such as used on fire hose serves the purpose well. Such a protecting covering is indicated at 8.

The hose as thus far described might by successive bending at the same To avoid such a result a spiral of wire closely wound and with the spirals at low pitch is inserted in the lead pipe and extends from end to end thereof. Such spiral is represented at 9. This spiral will able weight whichmight otherwise crush the well in some cases, as in a quarry where the steam hose is handled considerably, to place a tube of fabric becated 1n Fig-` 2 at l0, thereby to prevent the V c'oils of the spiral from chafing through the lead. A hose of this sort bends with suliicient readiness and to the desired extent without breaking or kinking the metallic pipe lining. As indicated in Fig. l, the compressible layer 6 allowssuiiicient yielding between the pipe and the canvas tube to provide for this. At the same time the stiffness of the canvas tube 7 and surrounding shield 8 materially assist in preventing short bends such as would permit the pipe to'kink. l

The compressible layer, 6 may be made of since it is not needed place, result also resist a very considerother material than asbestos, but when the motive fluid is steam, asbestos 1s the best material for said layer, because of its being a, non-conductor ofl heat and because it 1s not detrimentally affected by the heat o f the pipe. It is preferable that the material of the layer 6 be in .fabric form in orderthat -it be not displaced at points where the pipe bends in handling the hose.

The invention claimed is l. A steam hose consisting of a lead pipe,

a spiral of closely coiled wire within to sustain said pipe against kinking, a layer of suitable material interposed between said spiral and said pipe to prevent the spiral from chaling the 1eada non-conducting covering for the pipe and a protecting cover surrounding the non-conducting cover.

2. As an article of manufacture, a steam hose consisting of a lead pipe integral continuous and impervious, a spiral of' wire closely coiled and of low pitch located within and longitudinally of said pipe to sustain the lead against kinking, a sheath of fabric interposed between thepipe and the spiral to prevent the spiral from chafng the pipe, a laver of asbestos fabric loosely woven of soft yarn overlyihg said pipe for the purpose set forth, a layer ofcanvas over the asbestos to assist in sustaining it, and a protecting tube of coarse woven fabric over all.

In testimony whereof we aix our signatures in presence of two witnesses.

CHARLES A. SWANSON. ALBERT BUSHONG BROOKE.

Witnesses: l

A. A. SWINGLE, J. B.-BRos1Us. 

